63796481280 has 504 divisors, whose sum is σ = 261871327872. Its totient is φ = 14580559872.

The previous prime is 63796481197. The next prime is 63796481291. The reversal of 63796481280 is 8218469736.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6526957 + ... + 6536723.

It is an arithmetic number, because the mean of its divisors is an integer number (519585968).

Almost surely, 2^63796481280 is an apocalyptic number.

63796481280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63796481280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130935663936).

63796481280 is an abundant number, since it is smaller than the sum of its proper divisors (198074846592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63796481280 is an frugal number, since it uses more digits than its factorization.

63796481280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9813 (or 9784 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 63796481280 in words is "sixty-three billion, seven hundred ninety-six million, four hundred eighty-one thousand, two hundred eighty".